Stop-motion for looms



(No Model.) 2 Sheets-Sheet 1.

J. MEGSON.

STOP MOTION FOR LOOMS.

yiatepted Sept. 7, 1886.

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(No Model.) 2 Sheets-Sheet 2.-

J. MEGSON.

STOP MOTION FOR LOOMS.

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WITNESSES w z r ATTORNEYS.

UNITED STATES PATENT OFFI E.

JOHN MEGSON, OF ADAMS, MASSACHUSETTS.

STOP-MOTION FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 348,761, dated September 7,1886.

Application filed April 14, 1885. Serial No. 162,956.

To (LZZ whom it may concern:

Beitknown that I, JOHN MEG sea, of Adams, in the county of Berkshire and State of Massachusetts, have invented a new and Improved StopMotion for Looms, of which the following is a full, clear, and exact description.

The object of my invention is to provide a new and improved stop-motion for looms, which automatically shifts the belt and stops the loom in case the shuttle fails to leave the box. If the shuttle should fail to leave its box in a single shuttle-loom such as shown in the drawings, while a pattern was being formed by the harness and the loom were allowed to run, both the takeup and patternchain would require adjusting, and hence it is very essential that the loom should be stopped at such times to avoid this adjustment. \Vith a loom employing more than one shuttle, if one shuttle should fail to leave its box the first shuttle that moved from the other side of the lay, after the failure of the shuttle to leave the box, would be prevented from entering the box, and consequently would remain between the warp-threads, and when the lay returned on the beat-up the shuttle would cause the warp-threads to break.

The invention consists in numerous parts and details, and combinations of the same, as will be fully described and set forth hereinafter.

teference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure l is a frontview of the lay of a loom having applied thereto a port-ion of my improved automatic stop-motion. Fig. 2 is an inside view of the breast-beam, showing applied to the said beam another portion of my improved stop-motion. Fig. 3 is a crosssectional view of the breast-beam and the lay on the line or .r, Fig. 2. Fig. 4 is a detail crosssectional view of the breast-beam on the line y 'y, Fig. 2. Fig. 5 is a plan view of the lay. Fig. 6 is a plan view of the under side of the breast-beam. Fig. 7 is a similar view to Fig.

3, with the lower parts broken off and showing the parts in a different position.

The lay A is mounted to swing between the side pieces of the base frame A, in the usual (No model.)

manner, toward and from the breast-beam, also secured on the base. On the upper part of the lay the shuttle-race G is formed, and at the ends thereof arethe boxes 0 for receiving the shuttle D, of the usual construction. The front of each box is formed by a curved lever, E, pivoted at the outer end of the lay in such a manner as to swing toward and from the back of the lay, the said lever E being pushed inward by a spring, F, surrounding a pin, F, passing through an arm, G, projecting upward from the front of the lay.

In jaws or lugs H on the front of the lay the shaft J is journaled, the middle of which is supported by a forked piece, J, between the prongs of which a dagger, K, projects from the shaft J, the free end of the dagger being providedwith a downwardl y-proj eeting prong, K, and a top prong, K", as shown in Fig. 3.

From the shaft J arms L project upward, which are provided at their upper ends with heads L, resting against the outer'swinging ends of the levers E at the ends of the lay. Springs I are coiled around the ends of the shaft J,eaeh having one end resting against the adjacent arm L, and the other end against the under side of the lay-beam and pressing the arms L against the levers E.

From the under side of the breast-beam B jaws M project downward, and between the lower ends of the same a forked piece, M, is pivoted, to the rear part of which a supplementary bunter, N, is pivoted. The supplementary bunter is provided with notches or grooves 01, to receive the lower prong, K, of the dagger K, and has its upper end forked to form two prongs, N, having notches M" in their front edges at thetop, so as to adapt the said prongs to fit against the bottom and rear edges of the usual bunter. The bunter O is pivoted to the under side of the breast-beam, and is provided in its frontedge with a groove, 0, for receiving the upper prong, K of the dagger K. A spiral spring, 1 secured to the supplementary bunter N and to the breastbeam,presses the upper ends of the prongs N of the supplementary bunter upward against the bottom and front edges of the usual bunter, 0. Prongs P, having their bottom edges beveled or rounded upward, project from the back of the supplementary bunter N, and

prongs Pflhaving their top edges beveled downward, project from the jaws M slightly below the prongs P. The hunter 0 rests against the belt-shifting lever Q, which is pressed in the inverse direction of the arrow athat is, from the side of the hreast-framehy a suitablespring, Q. The upper or handle end of the said helt-shifting lever Q passes through a slotted arm, Q", projecting from the end of the breast-beam, and having a notch, Q, for receiving the said lever Q. The said hand-lever Q also passes through a slot in the sliding piece R, arranged to slide in the end of the frame and on the under side of the slotted arm Qflwhich slide is provided with a button, R, projecting into its slot. The sliding piece R is also provided with a prong, R having its end beveled, and forming a pocket for receiving the lever Q. A lever, S, is pivoted at its middle on a hanger, S, extending downward from the breast-beam, and is provided in one end, which is bent downward rectangularly, with a notch for receiving a pin, T, projecting from the forked piece M, to which the supplementary hunter N, is pivoted. At its opposite end the said lever is provided with a slot, S, into which a pin, T, passes, which is secured in the inner end of the sliding piece R. The belt-shifting fork is connected by a rod, ,V, with the lever Q. The other parts or the loom are of usual construction, and are not affected by the arrangement or construction of my improved stop-motion.

The operation is as follows: Vhen the loom is in motion the lever Q is held in the notch Q in the arm Q, and the belts are so adjusted as to drive the loom. The lay swings toward and from the breast-beam. As the lay moves in the direction of the arrow 1), Fig. 3, toward the breast-beam, the lower prong, K, of the dagger K will pass between the prongs N of the supplementary hunter N, as clearly shown in Fig. 3. XVhen in this position, the shuttle enters one of the boxes, and in doing so pushes the lever E outward, which, acting upon the head L of one of the arms L, turns the shaft J, and thereby lowers the dagger, so that as the lay continues to move toward the breastbeam the supplementary hunter N will be depressed by the dagger to such an extent that the dagger will pass between the two hunters to the position shown in Fig. 7 without stopping the loom. After the lay has moved back the spring 1? returns the supplementary hunter N to its normal position. If, when the parts are in the position shown in Fig. 3,the shuttle should fail to enter the box, the dagger will not be depressed, and as the lay continues to move forward the upper prong,K ,of the dagger will strike the ordinary hunter, 0, and swing the inner end of the same in the direction of the arrow 1), thereby swinging the outer end in the reverse direction of the said arrow, and causing the same to push the lever Q out of its notch Q and permitting the spring Q to throw the said lever Q in the reverse direction of the arrow a,

whereby the belt will be shifted and the loom stopped. It is to be understood that the upper prong, K of the dagger is always in position to strike the ordinary hunter, 0, as the lay moves forward when the shuttle is out of the boxes. Should, however, the shuttle fail to leave its box in the forward movement of the lay and before it arrives at the position shown in Fig. 3, the dagger being depressed its lower prong, K, will strike the supplementary hunter N, which, resting against the ordinary hunter, O,will cause the said hunter 0 to push the lever Q out of its notch and stop the loom, as above described. The loom will also be stopped by the lower prong, K, of the dagger striking the supplementary hunter N, should the dagger fall below its normal position by the weakening of the springs I, or for any other cause. The pins P P on the jaws M, and the supplementary bunter N, respectively, prevent the supplementary hunter from being swung down below the ordinary hunter, 0, when the supplementary hunter is struck by the lower prong, K, of the dagger to stop the loom. At the same time that the lever Q is tripped to stop the loom it pulls the slide R outward with it, so that the outer end of the lever S will he raised and the inner end depressed, which movement will swing the supplementary hunter downward out of the way of the dagger, thereby permitting the lay to be pushed back without removing the shuttle from the box. XVhen the lever Q is moved in the direction of the arrow ainto the notch Q to shift the belt and start the loom, the said lever strikes the button Rin the sliding frame or piece R and moves the same in the direction of the arrow a, and causes it to lower the outer end of the lever S, whereby the inner end of said lever is raised so as to permit the spring 1? to pull the supplementary hunter N up against the ordinary hunter, 0.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent 1. The combination, with the breast-beam, the usual hunter thereon, the lay, and shipper-lever, of a supplementary hunter on the breast-beam, a forked dagger on the lay, and means for raising and lowering the dagger to cause its prongs to strike one or the other of the hunters to operate the shipper-lever to stop the loom when the shuttle is out of the box or should it fail to enter the same at the proper time,substantially as herein shown and described.

2. The combination, with the breastheam, the usual hunter thereon, the lay, and shipper-lever, of a supplementary hunter on the breast-beam, a shaft journaled on the lay, a forked dagger on the shaft, levers on the ends of the shaft, and levers on the lay and engaging the levers on the shaft, substantially as herein shown and described.

3. The combination, with the breast-beam, lay, and shipper-lever, of an ordinary hunter pivoted to the under side of the breast-beam, a supplementary hunter hung on jaws depending from the under side of the breastbeam and having its upper end resting against the ordinary hunter, a shaft j onrnaled on the lay, a dagger at the center of the shaft, upwardly-projecting levers on the ends of the shaft, and levers pivoted to the lay and engaging the levers on the shaft, substantially as herein shown and described.

4.. The c0inbination,with a breast-beam and a lay, of a shaft, a dagger, the levers E L, the hunter 0 on the breast-beam, the hangers M, the forked piece M, the supplementary bunter N, the spring 1, the lever S, connected with the said forked piece M, the sliding frame R, the beltshifting lever Q, and a projection on the sliding frame R for acting on the said beltshifting rod or lever Q, substantially as here- 20 in shown and described.

5. The combination,with a breast-beam and breast-beau], the forked piece M, pivoted to the same, the hunter 0, the supplementary hunter N, pivoted to the forked piece M, and the pins Pand 1? on the'jaws M, and the supplementary hunter N, substantially as herein shown and described.

JOHN MEGSON.

Witnesses:

JOHN FIRTH, THOMAS MEIKLEJOHN. 

